Demilec Insulation Removal & Replacement Nationwide

Demilec Insulation Removal & Replacement in Converse: What to Know First

We provide independent Demilec insulation removal and replacement in Converse, typically completing attic jobs in one to two days with a written price locked before any work starts. Most Demilec removal and replacement projects in this market run between $2,800 and $6,500 depending on square footage, contamination level, and whether the existing foam is open-cell or closed-cell. This page is for homeowners who’ve found Demilec spray foam in their Converse attic, crawl space, or walls and need it removed safely, replaced with material that performs, and documented proof that the job worked.

Call (830) 420-0953

Call (830) 420-0953 for a free estimate. A live person answers 24/7.

How Demilec Products Fail - and How We Fix Them

• Heatlok HFO High Lift shrinkage in Converse attics. The HFO blowing agent in this closed-cell series can contract during extreme summer heat cycles, creating gaps between the foam and roof deck that show up as hot spots on infrared. We’ve pulled down sections in Converse homes near FM 78 where the foam had pulled back two inches from the rafters. We remove the compromised lift entirely, then replace with a closed-cell product dimensionally stable at 140°F plus.
• Heatlok XT yellowing and odor retention. When this open-cell line is applied too thick in a single pass, the exothermic reaction doesn’t complete properly, trapping amines that off-gas for years. Homeowners describe it as a cat-urine smell that gets worse in August. We remove the full depth, ventilate the cavity until VOC readings drop, then reinstall in controlled lifts.
• Demilec AgriThane agricultural-grade foam found in residential spaces. This lower-density closed-cell product was occasionally used by budget contractors in the Converse area during 2018-2020; it’s not rated for living spaces and degrades faster under UV exposure if the roof deck leaks. We treat it as contaminated insulation, full-gown removal, and replace with proper residential-grade material.
• SEALECTION 500 water absorption in crawl spaces. Open-cell foam in ground-contact applications acts like a sponge when the vapor barrier fails, which is common in Converse’s clay-heavy soils after heavy spring rains. The foam gains weight, delaminates from joists, and breeds mold. We remove the saturated foam, address the moisture source, then switch to closed-cell or a hybrid system with proper drainage.
• Demilec foam installed over unsealed top plates. This isn’t a product defect, it’s an installation error we see constantly in 1970s ranch homes off Foster Road. The foam looks fine but the house still leaks because the top-plate penetrations were never sealed first. We remove the foam, seal the envelope properly, then reinstall. Seal the leaks first. Then insulate. The numbers will tell you if it worked.

Our Demilec Insulation Removal & Replacement Process

1. 1
   Call and scope. You describe what you’ve got, we schedule a site visit. We bring a written price guarantee: no work starts without a flat price, written scope, and written warranty.
2. 2
   Blower-door test and infrared scan. We pressurize the house to 50 pascals and record the CFM50 reading, then map thermal anomalies with infrared. This tells us whether the Demilec is the problem or a symptom of a deeper envelope failure.
3. 3
   Removal strategy. For closed-cell Demilec, we use mechanical removal with HEPA containment; for open-cell, we assess whether full removal is necessary or if selective extraction plus overlay makes sense. Contaminated foam, rodent-affected material, or agricultural-grade product always comes out entirely.
4. 4
   Air sealing before replacement. Top plates, can lights, plumbing penetrations, and electrical chases get sealed with acrylic latex or polyurethane caulk, depending on the substrate. This is non-negotiable under our protocol.
5. 5
   Replacement and verification. We install the replacement insulation, typically Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, or GreenFiber, based on your performance goals and budget. Then we run the blower-door test again and hand you the before-and-after numbers.
6. 6
   Documented Photo Record and warranty. You receive photos of every stage, the blower-door report, and the 365-Day Done Right Promise in writing.

Before

After

What Demilec Insulation Removal & Replacement Costs in Converse

What moves the price: square footage, foam density, accessibility, contamination level, and whether we find unsealed penetrations that should have been addressed before the original installation. We also service Reflectix and other brands if your project involves mixed materials.

Call (830) 420-0953 for an exact quote. Estimates are free, and we offer a Free Second Opinion on any written estimate you’ve already received.

Why Converse Homeowners Call Topside Attic Insulation Converse for Demilec Work

We’ve removed Demilec from attics in Converse long enough to know which batch years had shrinkage issues and which applicators in this market were spraying agricultural foam into living spaces. Wes Okafor runs a blower-door test on every job, before and after, so you leave with a printed report, not a handshake and a promise. Our 365-Day Done Right Promise is backed by a written scope and written warranty delivered before anyone starts. Calls are answered by a live person 24/7, and our technicians are background-checked, uniformed, and trained on Demilec’s specific removal requirements as well as Reflectix and other systems.

FAQs